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3 years ago

What 2 numbers add to -7 and the same two numbers multiply to 3

Mathematics

2 answers:

yarga [219]3 years ago

4 0

That's impossible. Are you factoring?

alexandr402 [8]3 years ago

4 0

A) x + y = -7
B) x * y = 3
y = 3/x then put this into equation A
x + 3/x = -7
x^2 + 3 = -7x
x^2 +7x + 3 = 0
x = -6.5414 and x = -0.45862

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find the measure of the central angle of a circle if it's minor are length is 14π and the radius is 18 inches

MrMuchimi

Step-by-step explanation:

Length of arc of a circle is given as:

$l = \frac{ \theta}{360 \degree} \times 2\pi \: r \\ \\ \therefore \: 14\pi = \frac{ \theta}{360 \degree} \times 2\pi \: \times 18 \\ \\ \therefore \:\theta = \frac{14\pi \times \: 360 \degree }{2\pi \: \times 18} \\ \\ \therefore \:\theta = \frac{7 \times \: 360 \degree }{18} \\ \\ \therefore \:\theta = 7 \times \: 20 \degree \\ \\ \huge \red{ \boxed{\therefore \:\theta = 140 \degree}}$

Thus, the measure of central angle is 140°.

7 0

3 years ago

6.493 rounded to the hundredths

Nana76 [90]

The answer is 6. 49 you welcome :)

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3 years ago

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5(x 1) − 8 = 5x(2 − 4)

svp [43]

Answer:
5 x (2 - 4)
5x-8= -10x
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Hope this helps!

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4 years ago

What is the area of this figure?

insens350 [35]

Answer:

54 units squared

Step-by-step explanation:

You have to divide the shape into simpler shapes such as rectangles and triangles that you can easily find the area of. Then, add those areas together. I divided it into one rectangle and three triangles.

Rectangle 1: length=7 width=6 6(7)=42

Triangle 1: base=6 height=2 1/2(6)2=6

Triangle 2: base=3 height=2 1/2(3)2=3

Triangle 3: base=6 height=1 1/2(6)1=3

Area= R1+T1+T2+T3= 42+6+3+3= 54 units squared

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4 years ago

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7x +11 > -3<br> Solve the Inequality for x

kifflom [539]

Answer:

x > -2

Step-by-step explanation:

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3 years ago